N.J. Admin. Code § 7:10-11.9

Current through Register Vol. 56, No. 12, June 17, 2024

Section 7:10-11.9 - Standards for the construction of pumping stations

(a) All pumping stations shall be located above-ground for ease of inspection and maintenance. Where an above-ground location is not feasible, the station shall meet the requirements for underground pumping stations at (g) below.

(b) Regulations for pumping station location and protection are as follows:

1. Pumping stations shall not be located within the 100 year flood hazard area. Where a location outside the 100 year flood hazard area is not feasible, the pumping station shall be protected against flooding. All treated water pumping stations shall have a floor elevation at least one foot above the highest recorded flood elevation.

2. Pumping stations shall be constructed in compliance with 7:10-11.6(g).

(c) Wet wells shall be watertight and protected against seepage and contamination. Wet wells shall be covered and provided with downfaced or mushroom type screened vents protected against entry of foreign matter.

(d) Regulations for pumping equipment are as follows:

1. Pumping equipment shall be designed to meet the demand requirements pursuant to 7:10-11.6(a).

2. Sufficient pumping units shall be supplied so as to have a firm capacity to achieve the maximum design output of the station.

3. Where low pressure may adversely affect customers, a booster pump station shall be designed and controlled to maintain a minimum pressure of 20 pounds per square inch (20 p.s.i.) in the water main from which it draws suction. If chronic low pressure problems exist, the Department shall require an automatic switch to deactivate pumps in low pressure situations.

4. Priming systems shall be constructed to prevent contamination of the water supply.

(e) Each pumping station shall be equipped with check valves, flow meters, isolation valves located before and after the pumping station, pressure gauges, and manual shutoff valves within the station.

(f) Each pumping station with a design capacity greater than or equal to 100,000 gallons per day shall be equipped with a flow totalizing meter.

(g) Each underground pumping station shall have sump and sump pump capacity adequate to handle leakage or a break within the station as follows:

1. A minimum of two sump pumps designed to be activated at different flood levels;

2. An alarm activated 24 hours a day that is triggered when water is six inches above the floor level or when the secondary sump pump activates. In addition, an automatic above-ground power shutoff shall be activated when the water reaches the base of the pumps; and

3. Isolation valves which automatically close either when there is a power failure or when the secondary sump pump is activated.

N.J. Admin. Code § 7:10-11.9

Amended by R.2000 d.354, effective 8/21/2000.
See: 31 N.J.R. 2717(b), 32 N.J.R. 3106(a).
Rewrote (d)2.